Sheet-metal-working tool



June 17, 1930. c. MGCURLEY 1364,45?

` SHEET METAM, WORKING TOOL Filed Jan. 14, 1928 Zzgl I '`milla"ThisjjnrcciIj1i1.EY,y :on mum,Jir'nri,"neivnicrfrremin?r issie y,1e foH-Unson ,Moron on colvrrnnxyor DETROIT, MIcHIeANgVA oRr'oRAT-Ionforumomenn y Application file-dr Januaryflfrl,

l inventionirelates to a tool yforourling ,the free edgesof a: twoply metal strip and more particularly, although not exclusively, toa toolfor use in assembling rsheet metal 'automobile bodies for'crimping thefree edges Lj of a molding strip interposedbetween and exg, tending-beyond the anges' of adjoining pan @hinweis priori he; @.uili g1 @wenn ''.Fie: leise dti Plnfiewj Shwlelfthe ,iiiqveinenifoi` the; mining i011 iiii performing the ope'rtiibf Crimping' the" freed. themldiestipaed* Fie# "is 'detlwl Showing the lends Qlff over.' at the completio tion. l

ing Strip havin? an enlarged head ai ih@ eX- with the present inventiomi the Afree'edgesfot 'if `the molding strip fianges project inwardly v20 y vr,and are bent or Akcurled thereove'r to` form a,

rigid'` interlocking conneetiom the operation f fofso bending the angesservingalso to pull,

beyondftpe free edgesrof the panelangs Lfthe joint together whereby the panels are ri g` )idly drawn vinto their propenrelative"posi-i i k;.tion's and the-:head orbead of themolding strip broughtlinto close engagement with they i `exterior'facesoftthelpanels. f f 4The object of this invention is to provide .ja simple vand inexp'ensiveftool` for curling or f crimping the free edges 'of the molding strip.

'Bj/the useofthistool, thek formation of Y. the panel joints is ei'ected by operations perposedexteriorsurfaes'ofl the panels is avoid- 'k j Y bj, i, i f

,ed and pre-finishing 'of said su'rfacesper. Surfaces .0r grooves 7a and l7i a Separated byv yfmittedl@ f Il f f i uk Y rOtherobjects 'of this invention will appear i from the following description, reference b eing had to the accompanyingdrawings form-i4 ing 'a party of this,specification, wherein like i reference characters ydesignatev correspond-j vangles to oneanother, of a curling tool cony i formedfjwholly at thefinterior, of the bodyso that danger'of accidental injury tothe eX- ing parts in the severalviews and wherein Figs 1 and 2 are'side elevations, at right Y structed injaccordance with the invention.

' ylig. Sis a detailvvsectional ,View showin i 50 the manner in. which' the, :molding 'strip is Y. ingfstro'ke, c

longitudinal plane of thejsuperimposedjarms.. Any suitable mounting meansfo'r the roll may be used such,forfexample, vasfthepin" 'orfboltg ,0; www?" i I v move RCYOSS the 'enti-re, face of-the*Work alldfbyond th? i i 1o (iii. Whiehnie i011 y7y is retained. by meins" means oiga' tapered rihofrWed'ge7?.` z y i V `'Ihearn'i 4, whicharries lthe"studior, hook `8, is suciently longer thanfthearm 3=Which carries the `roll 7 to permit ithe'hookfS Vtoexl` tween the-hook yandthe path ofuthegroll.

As willbe seen'byreferenceto Fig, A3,`both`if M. tendlaterallyfrom the ar'mfiiin Afrol'xt ofthe .i

roll 7 and providethedesired 'clearance-ba the VYinturnedk langes'of the 'panels' AandBg A- andthe freeends Gand H of'th'emoldingi* v ter than the holes 15 lin the molding strip flanges. rivet holes is provided in order that the molding strip may be drawn up slightly at the time the free ends are bent over, thus forming a tighter joint. Y l In the operatio'nof my device, the hook-8 ofthe arm 4 is first inserted through the rivet j holes'll and l5. Due to the greater sizeof the rivet holes 14, the stud 8 Will'have a slight 1 `play therein as describedrv above, enabling.-y the operatork to pull up them'oldingstrip, bringing the head F into tight engagement with the panel Walls. Thev tool being thus Y Y initially positioned'by'means of the stud 8, the roll Z will be in position at one side of the freeends of the molding strip,'the tapered rib/7cy being directly.inline theline. of division between the free. endsG and H` 0f the molding strip flanges. ,As the handles. of, the device are closed together, the arm 3 carrying the: wiping roll 7 will bev drown across.` the` ends YGr andI-I of the molding strip flanges,

and due to the arcnatesurfacesfof the Working face of thefroll, these ends Will be bent ont;L Wardly over the ends of theflanges C andy D von the `panels A and B, as illnstrated in Fig. 5. Y

l' A ile I have described herein in detail one embodiment of my'invention, itfwill be understood that many modic'ations thereof are possible Without departing from, the 'spirit ofmy invention which isto be limited only by the following'claim. L

Y lclaim:

:Attoolcomprising a pair ofarmsfcrossed and pivotally joined together, a wiping rollV carried lby ,one'of Said arms, ay stlid'fixedto.l Y

the other ofesaid arms and'extending in' a direction parallel with the axisof'saidvviping roll, and handles for bothy of said/arms.

',In'testmoliy'whereof, I ax'my signature.

c CHARLESMCQURLEY.. i

This difference in the sizeof the i 

